"Factory Spec Race Formula" is a new line of packs that use the factory specified values for C rate and capacity.
Race Formula packs use the very best in materials to achieve the lowest possible IR for the specified mAh. These packs are built by the best LiPo factories. If you're a racer looking for the very best in race packs at a great price than these are for you. Don't be fooled by the lower price of these packs. These packs are equal or better than any other higher rated pack on the market.